CHESS by Philidor

No. 296.

V. L. EATON (Cincinnati Enquirer, 1930) WHITE to play and

mate in two moves; solution next week. Solution to No. 295 (Gulden* R - K B

5, threat R x Q P. P X R; 2 B - B7./...Q-B4;

Q

2 - KR Q-QB 5;2PxQ. r...Q-B6;2Kt 2 Kt x P (Kt 6).

BLACK (5 men) One of the most critical types of game is that in which a player--usually White-attempts to get the upper hand by an early central pawn advance ; Alekhine's defence gives examples of this, the Four Pawns attack in the King's Indian is another case and-as in this case-the Robatsch defence can lead to such positions. It is difficult to judge such positions on general principles ; exact analysis is required and such variations are therefore more than usually likely to be overthrown by subsequent improvements.

White, PFLEGER Black, EISING Opening, ROBATSCH (German championship, 1965)

P-Q 4 P-K Kt3 a P-K4 B-Krz

P- 4 P-Q 5 P-Q 3QB 5 Kt-KB3 Kt-KB3

6 Kt-83 (3-0

7 B- IC2 P- Q Kt 4? Overlooking the force of White's reply-hoping no doubt for 8 B x P, Kt x K P; 9 Kt x Kt, Q-R ch; to Kt -B 3, B Y Kt ch; P x B, Q x B. Best was to attack the centre by 7 .. P K 8 P- K5! PxP 9 PxP Kt-Kt 5

R - B 7; 2 Q X Q. Theme-White defences.

WHITE (7 men) pin met by Black pinning to P-Q6! Kt- Q B3 to ...PxP?; it Q-Q 3 and to ... Kt x K P?; t I KtxKt,BxKt; 12 Q-Q 5 both lose piece and to . . . B - Kt 2 is met by ti Kt x Kt P (threat Kt - B 7), Kt - R 3; 12 B - It B 4 with advantage. • B- Kt 5! B- Q a tx B- Kt 2?; 12 P xP winning a piece or Tr P - B 3?; 12 Q.- Q 5 ch. Black is lost. 12 BxKSP P- B3 The threat was 13 PxP, Kt xP; 14 Q x B. PxKP Q x P 14 Kt-Q5 Q-Q r x4... Q-B 2; 15 PxP, KtxB P; 16 BxKt,BxB; 17 KtxB ch,QxKt; 18 QxB. r5 PxP Q - R 4ch? Better t5 . . . Kt xP though after 16 0 - 0 Black is a pawn down with no compensation.

16 Kt - B 3 Q R-K ch

17 K- B r KtxBP or 1.7 ...BxP; 18 QxB. • BxK Kt R xB or 18 B x B; 19 Q x B, B x Kt; 2c 20 - 4 19it

1 -Q 4! xKt. X R-Q r Kt - K4 . . .

Filling any y faint counter-chances. az B -IC a 3_Kt 3 QxP

23 Q- Kt 3 et QxQ 24 B P:..Q Resigns.